Bulb lamp



FIG. 1 is a perspective view of a bulb lamp;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The claimed surface of the bulb lamp is illustrated with the color designation for the color blue of Pantone 294c.

The portion of the bulb lamp depicted in broken lines forms no part of the claimed design. 

CLAIM The ornamental design for a bulb lamp, as shown and described. 